/*
 * Copyright 2008 Carnegie Mellon University
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *  
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, 
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package edu.cmu.lti.sepia.task.retrieval;

public class Highlighter {

  /**
   * Returns text with highlighting specified queries.
   * 
   * @param text
   * @param queryTerms
   * @return text with highlighting specified queries
   */
  public static String highlightWithQuery(String text, String[] queryTerms) {
    for (String w : queryTerms) {
      if (w.length() == 0) {
        continue;
      }
      text = text.replaceAll("(?i)(" + w + ")", "<strong>$1</strong>");
    }
    text = text.replaceAll("</strong><strong>", "");
    // text = text.replaceAll( "\n", "<br>" ); // keep them as is
    return text;
  }

}
